Menachem Liss, DO

Background and credentials

Dr. Matthew Koller is a board-certified adult psychiatrist who completed his undergraduate training at The University of Texas at Austin. He earned his medical degree from The University of Texas Health Science Center at San Antonio and completed his general adult psychiatry residency at Baylor College of Medicine in Houston, TX, where he served as Chief Resident of Education in his final year of training.

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Treatment approach

Dr. Koller believes that understanding a patient fully is essential before treatment begins, emphasizing a collaborative and patient-centered approach to care. His practice is primarily focused on medication management, but he also incorporates supportive therapy and other therapeutic modalities as needed. He may recommend including a therapist in the treatment plan to ensure comprehensive, well-rounded care. He has experience treating a wide range of mental health conditions, including depression, anxiety, insomnia, personality disorders, bipolar disorder, PTSD, and psychotic disorders.

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What you can expect in a first visit

During the first visit, patients can expect a thorough and individualized psychiatric evaluation, where Dr. Koller takes the time to understand their symptoms, history, and treatment goals. He prioritizes open communication and shared decision-making, working closely with patients to develop personalized treatment plans. While medication management is the foundation of his approach, he remains flexible and adaptive, incorporating therapy and other interventions as needed to help patients achieve optimal mental health.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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Kevin Seske is a Licensed Clinical Professional Counselor who specializes in Sport and Health Psychology. His approach to therapy is collaborative, empowering, nonjudgmental, trauma informed, and goal-focused. He sees therapy as a method to find the individual's strengths to help overcome any hardships.‍Kevin integrates treatment modalities such as Cognitive Behavioral Therapy, Trauma-Focused CBT, Existential Therapy, and mindfulness techniques. In addition, he incorporates Sports Psychology in sessions where appropriate as he believes physical activity can empower us and teach us life skills that boost self-esteem, promote team building, and aid in relaxation. These methods are proven to show reduction in anxiety and depression.‍Kevin specializes in treating PTSD among young adults, adults, and/or immigrant populations. He is also skilled in treating mental illnesses such as anxiety, depression, grief, emotional abuse, and life transitions. Kevin has been told by clients and colleagues that he has a calming presence and is a good listener.‍Kevin's 10 years of experience as a counselor has included providing trauma-informed care for undocumented minors who arrived at the US border seeking refuge from their home countries, including ones experiencing Adjustment Disorder, PTSD, and ODD. Additionally, Kevin served in a FQHC on the Southwest side of Chicago, in their clinical setting and school-based health center.

Dr. Jennifer Snowden completed medical school at the University of Arkansas for Medical Sciences in Little Rock, Arkansas in 1995. She then completed a residency in general psychiatry at Emory University in Atlanta, Georgia, followed by a fellowship in forensic psychiatry also at Emory University in Atlanta, Georgia from 1995-2000. She spent ten years practicing forensic psychiatry at a state hospital in Atlanta. She then decided that she wanted to travel and spent eighteen months as a locum tenens psychiatrist primarily practicing in New England. During this time, she met her future husband and they decided together that they eventually wanted to live in the New England area. In 2013, she officially became a telepsychiatrist, which eventually provided her with the opportunity to move to Rhode Island and practice out of the home she and her husband bought there. She initially saw patients via telepsychiatry at a community mental health center in rural Georgia and later took a position as a remote consultant telepsychiatrist at Acadia Hospital in Bangor, Maine. Dr. Snowden uses a practical and realistic approach with patients to assist them in identifying small, attainable goals and then motivating them to achieve those goals. She prefers to work with adults and relishes the opportunity to work with patients who are highly motivated for change.

Eva Sleczka LCSW has a wealth of experience and a passion for integrated patient care. Eva Sleczka, LCSW brings a unique blend of expertise and compassion that is sure to benefit psychotherapy patients. Eva Sleczka, LCSW is a broadly accomplished social worker with years of experience in hospital health-based and community-based human services environments. Eva Sleczka LCSW has an impressive background in the behavioral health field, holding an MSW, LCSW from New York University and specializing in behavioral health psychotherapy with adults, children and families. They have spent 30 years working in various healthcare settings, including health and hospital systems, emergency room and screening center for psychiatric emergency services, school-based and community-based outpatient treatment settings, where they have honed their skills and gained valuable experience in patient care. Their commitment to staying abreast of the latest advancements in behavioral health science ensures that our patients receive the highest quality of psychotherapy care. One of the key strengths Eva Sleczka, LCSW, brings to our team is their expertise in integrative care and trauma-informed psychotherapy, skilled with adults and families with mental health needs. They have a proven track record of clinical supervision of social work students in the field, experience as a Clinical Director of a community mental health setting, psychotherapist for adults, children, and families with mental health needs, making them a valuable resource for both our patients and our staff. Whether it's managing complex cases, providing preventive care, or offering specialized treatments, supervision of social work students Eva Sleczka, LCSW is dedicated to delivering comprehensive and personalized care to each patient. At the core of Eva Sleczka, LCSW's practice is a patient-centered approach that prioritizes the individual needs and preferences of each patient. They believe in fostering strong clinician-patient relationships built on trust, empathy, and open communication. By involving patients in their own care decisions and providing education about their health, Eva Sleczka, LCSW, empowers patients to take an active role in their well-being. Eva Sleczka, LCSW utilizes cognitive behavioral therapy (CBT), focusing mainly on acceptance and commitment therapy (ACT) and incorporating mindfulness into a wellness-based approach.

Dr. Erica Mark is a board-certified psychiatrist with experience in both inpatient and outpatient care. She formerly served as a Staff Psychiatrist at a VA Medical Center, where she specialized in the mental health needs of veterans. Dr. Mark earned her B.S. in Biological Sciences, Summa Cum Laude, from Hampton University, received her MD from the University of Texas Medical Branch, and completed her psychiatry residency at Tulane University School of Medicine, serving as Chief Resident in 2017.

Dr. Mark fosters a warm, supportive environment where patients feel heard and respected. She values open communication and works collaboratively to set clear, personalized treatment goals. Deeply committed to service, she has supported underserved and marginalized communities through various nonprofit initiatives.

During initial sessions, Dr. Mark takes time to understand each patient’s history, concerns, and goals. She then creates individualized treatment plans aligned with each patient's unique needs and preferences. Dr. Mark encourages ongoing dialogue to adapt care plans and support long-term progress.

Dr. Pressley Warrick is a double board-certified psychiatrist specializing in general psychiatry and child and adolescent psychiatry. Dr. Warrick currently practices full-time, offering comprehensive psychiatric care to children, adolescents, and adults. She previously established and led a Behavioral Health Clinic integrated within a Family Medicine Practice. Prior to this role, Dr. Warrick provided dedicated psychiatric care at a private psychiatry practice for over a decade.

Dr. Warrick earned her medical degree from the Medical University of South Carolina, completed residency training at Baylor College of Medicine's Menninger Department of Psychiatry and Behavioral Sciences, and pursued additional specialization through a Child and Adolescent Psychiatry fellowship at Palmetto Health/USC School of Medicine.

Known for a collaborative and holistic treatment approach, Dr. Warrick emphasizes individualized care and evidence-based practices to support patients’ mental wellness. Her professional excellence has earned recognition as Sumter’s Best Psychiatrist for consecutive years.

Dr. Warrick’s preferred treatment modalities include medication management, psychodynamic psychotherapy, and supportive psychotherapy. She specializes in treating depression, anxiety, ADHD, autism, OCD, bipolar disorder, and PTSD. Her typical approach for new patients involves taking a detailed patient history, establishing rapport, and setting clear treatment goals in partnership with her patients.